Toby Collyer has already caught the eye in pre-season in the Manchester United midfield, now Erik ten Hag is impressed. Two games into the pre-season tour and Manchester United have had several players impress already, one of which being Toby Collyer in midfield. The 20-year-old was tipped to be a feature in the first team this coming season prior to pre-season starting, and he’s living up to those expectations. Heading to the US as part of the 29-man United squad, Collyer is likely to start against Arsenal, the same pre-season fixture that Kobbie Mainoo really broke through in last summer. Fo…